WO2012167889A1 - Procédé de production d'une bande d'aluminium ou d'alliage d'aluminium dotée d'une laque de thermoscellage sur une première surface et d'une laque cuite au four à base d'époxyde sur la seconde surface préalablement revêtue d'une couche de conversion exempte de chrome - Google Patents

Procédé de production d'une bande d'aluminium ou d'alliage d'aluminium dotée d'une laque de thermoscellage sur une première surface et d'une laque cuite au four à base d'époxyde sur la seconde surface préalablement revêtue d'une couche de conversion exempte de chrome Download PDF

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Publication number
WO2012167889A1
WO2012167889A1 PCT/EP2012/002324 EP2012002324W WO2012167889A1 WO 2012167889 A1 WO2012167889 A1 WO 2012167889A1 EP 2012002324 W EP2012002324 W EP 2012002324W WO 2012167889 A1 WO2012167889 A1 WO 2012167889A1
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WO
WIPO (PCT)
Prior art keywords
strip
acid
solution
conversion coating
aluminium
Prior art date
Application number
PCT/EP2012/002324
Other languages
English (en)
Inventor
Jürg Lutz
René Segerer
Hans Schlager
Original Assignee
Amcor Flexibles Kreuzlingen Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Amcor Flexibles Kreuzlingen Ltd. filed Critical Amcor Flexibles Kreuzlingen Ltd.
Priority to EP12725321.9A priority Critical patent/EP2718479B1/fr
Priority to PL12725321T priority patent/PL2718479T3/pl
Priority to ES12725321.9T priority patent/ES2668270T3/es
Publication of WO2012167889A1 publication Critical patent/WO2012167889A1/fr
Priority to HRP20180845TT priority patent/HRP20180845T1/hr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/82—After-treatment
    • C23C22/83—Chemical after-treatment
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/02—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using non-aqueous solutions
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/34—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/40—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing molybdates, tungstates or vanadates
    • C23C22/44—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing molybdates, tungstates or vanadates containing also fluorides or complex fluorides
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
    • C23C22/74—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process for obtaining burned-in conversion coatings
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
    • C23C22/76—Applying the liquid by spraying

Definitions

  • the invention relates to a method of producing an aluminium or aluminium alloy strip with a heat-seal lacquer on a first surface and an epoxide based stove lacquer on the second surface.
  • the invention relates to the preparation of cleaned surfaces with good adhesion properties of the aforementioned organic coatings on aluminium or aluminium alloy strips intended for the manufacturing of lacquered and deep- drawn capsules closed with a heat-sealed membrane lid for packaging portions5 of coffee.
  • rinse and no-rinse processes are generally known in the chemical treatment of metal surfaces, for example for the subsequent application of paints, adhesives and/or plastics.
  • rinse and no-rinse processes the metal0 surfaces are freed from oil, dirt and other residues in a first stage. Any residues of chemicals from this first stage are removed by rinsing with water.
  • the clean metal surface is wetted with an aqueous bath solution which is rinsed off.
  • EP-A-0 008 942 discloses treatment solutions, preferably for aluminum cans, containing:
  • DE-C-24 33 704 describes treatment baths for increasing paint adhesion and permanent protection against corrosion inter alia on aluminum which may contain from 0.1 to 5 g/l of polyacrylic acid or salts or esters thereof and 0.1 to 3.5 g/l of ammonium fluorozirconate, expressed as Zr0 2 .
  • US-A-4, 992,116 describes treatment baths for the conversion treatment of aluminum with pH values of around 2.5 to 5 which contain at least three components, namely:
  • WO-A-92/07973 describes a chromium-free treatment process for aluminum which uses 0.01 to around 18% by weight of H 2 ZrF 6 and 0.01 to around 10% by weight of a 3-(N-Ci-4-alkyl-N-2-hydroxyethylaminomethyl)-4-hydroxystyrene polymer as essential components in the form of an acidic aqueous solution.
  • DE-A-43 17 217 describes a process for the pretreatment of surfaces of aluminum or its alloys before a second conversion treatment for permanent corrosion control, in which the surfaces are contacted with acidic aqueous treatment solutions which contain complex fluorides of the elements boron, silicon, titanium, zirconium or hafnium either individually or in admixture with one another in concentrations of the fluoroanions of, in total, 100 to 4,000 and preferably 200 to 2,000 mg/l and which have a pH value of 0.3 to 3.5 and preferably in the range from 1 to 3.
  • the treatment solutions may additionally contain polymers of the polyacrylate type and/or in the form of reaction products of poly(vinylphenol) with aldehydes and organic hydroxyfunctional amines in concentrations below 500 mg/l and preferably below 200 mg/l.
  • Phosphoric acid is another optional constituent of these baths.
  • US-A-4, 136,073 claims a chromium-free treatment process for aluminum surfaces, in which the surfaces are contacted with acidic (pH 1 .2 to 5.5) aqueous solutions containing an organic film former and a soluble titanium compound in a ratio by weight of polymer to titanium of 100:1 to 1 :10.
  • the preferred titanium concentration is between 0.01 and 5% by weight.
  • US-A-5, 868872 discloses a chromium-free process for the no-rinse treatment of aluminium and its alloys and aqueous bath solutions suitable for this process.
  • the surfaces are contacted with solutions containing:
  • An object of the present invention is to provide a method of the type mentioned at the beginning with a good adhesion of the aluminium or aluminium alloy strip with a heat-seal lacquer on a first surface and an epoxide based stove lacquer on the second surface and the epoxide based stove lacquer without the need of a Cr(lll) conversion coating.
  • the aluminium or aluminium alloy strip manufactured with the method according to the present invention shall be qualified for the manufacture of deep-drawn capsules for packaging portions of coffee, the capsules having a heat-seal lacquer on the inner surface of the capsule and an epoxide based coloured stove lacquer on the outer surface of the capsule.
  • a further object is to provide a method of producing a chromium-free conversion coating on a surface of an aluminium or aluminium alloy strip in a continuous production line, the chromium-free conversion coating having good adhesion properties of a heat-seal lacquer on a first surface and an epoxide based stove lacquer on the second surface of the aluminium or aluminium alloy strip intended for the manufacturing of lacquered and deep-drawn capsules closed with a heat-sealed membrane lid for packaging portions of coffee.
  • the first of the aforementioned objectives is achieved by way of the invention in that a chromium-free conversion coating is produced on the first and second surface of the aluminium or aluminium alloy strip in a continuous production line before applying the heat-seal lacquer and the stove lacquer, the chromium-free conversion coating is produced by
  • a no-rinse process by treatment with an aqueous solution of 5 to 10 wt.- % hexafluorotitanic acid (H 2 TiF 6 ) and 2.5 to 5 wt.-% hexafluorozirconic acid (H 2 ZrF 6 ), or
  • a no-rinse process by treatment with an aqueous solution of 5 to 10 wt- % hexafluorotitanic acid (H 2 TiF 6 ) and 2.5 to 5 wt.-%hexafluorozirconic acid (H 2 ZrF 6 ), or
  • Cleaning and degreasing is preferably made by spraying the strip with an aqueous solution of 5 to 50 g/l, preferably 15 to 25 g/l, of an initial solution comprising 0.10 to 1.0 wt.-% bisoctyl dimethyl ammonium chloride, 5 to 10 wt.- % potassium hydroxide, 5 to 10 wt.-% phosphate (P) and ⁇ 5 wt.-% cationic tenside.
  • pickling is preferably made by spraying the strip with an aqueous solution of 5 to 50 g/l, preferably 15 to 25 g/l, of an initial solution comprising 65 to 80 wt.-% ortho phosphoric acid.
  • pickling is preferably made by spraying the strip with an aqueous solution of 5 to 30 g/l, preferably 8 to 15 g/l, of a first initial solution comprising 25 to 50 wt.-% sulphuric acid and 5 to 15 wt.- % non ionic tenside, and 0.1 to 10 g/l, preferably 1 to 3 g/l, of a second initial solution comprising 5 to 7 wt.-% hydrofluoric acid.
  • the conversion coating is preferably made by spraying the strip with a solution of 50 to 200 g/l, preferably 80 to 120 g/l, of an initial solution comprising silane and 10 to 25 wt.-% ethanol.
  • the conversion coating is preferably made by spraying the strip with an aqueous solution of 10 to 160 g/l, preferably 30 to 50 g/l, of a first initial solution comprising 5 to 10 wt.-% hexafluorotitanic acid and 2.5 to 5 wt.-% hexafluorozirconic acid, and 1 to 10 g/l, preferably 7 to 9 g/l, of a second initial solution comprising 20 to 21 wt.-% silica.
  • the conversion coating is preferably made by spraying the strip with an aqueous solution of 5 to 50 g/l, preferably 15 to 25 g/l, of a first initial solution comprising ⁇ 1 wt.-% diammonium dimolybdate and 5 to 10 wt.-% hexafluorozirconic acid, and 0.01 to 0.3 g/l, preferably 0.1 to 0.3 g/l, of a second initial solution comprising 10 to 25 wt.-% ammonium fluoride and 10 to 25 wt.-% ammonium hydrogen difluoride.
  • the conversion coating is preferably made by spraying the strip with an aqueous solution of 5 to 50 g/l, preferably 15 to 25 g/l, of a first initial solution comprising ⁇ 1 wt.-% diammonium dimolybdate and 5 to 10 wt.-% hexafluorozirconic acid, and 0.01 to 0.3 g/l, preferably 0.1 to 0.3 g/l, of a second initial solution comprising 10 to 25 wt.-% ammonium fluoride and 10 to 25 wt.-% ammonium hydrogen difluoride, and 0 to 2 g/l, preferably 0.05 to 0.2 g/l, of a third initial solution comprising 25 wt.-% polycarboxylic acid in water.
  • a conventionally cleaned and rinsed metal surface after rinsing with deionized water and drying and/or removal of the water film by squeegees, is wetted in any manner with the solution of silanes in the polar organic solvent aqueous treatment solution in such a quantity that around 2 to 20 ml and preferably around 5 to 10 ml of the polar organic treatment solution are applied per square meter of surface area.
  • the treatment solutions in the preferred no rinse process according to the invention may be applied to the precleaned metal strips by any method which is capable of producing a uniform, defined liquid film on the metal surface in the quantity ranges indicated.
  • the roller application process using two to four rollers has proved to be particularly effective, although wetting of the strip by spraying or immersion and subsequent removal of the excess liquid film, for example by plastic-coated equalizing rollers or an adjustable air knife, is also suitable.
  • the temperature of the treatment solution may be in the range from 15°C to 30°C and is preferably in the range from 20°C to 25°C.
  • the liquid film applied to the metal surface is allowed to react thereon for about 1 to 40 seconds, after which the film is dried and heat-treated at elevated temperature.
  • the process steps of contact with the metal surface and drying may also be combined.
  • a formable, water-insoluble solid film with a weight per unit area of around 5 to 50 mg Si/m 2 and preferably around 10 to 30 mg Si/m 2 is left on the metal surface.
  • the drying and/or heat treatment of the liquid film applied to the metal surface, or rather of the chemicals applied with it, may be carried out at temperatures of around 80°C to 140°C, temperatures in the range from 110°C to 120°C being preferred.
  • Both acidic and alkaline cleaners are suitable for the cleaning pretreatment of the metal surfaces to be wetted in accordance with the invention.
  • the layers obtained with the treatment solution according to the invention provide a uniform finish of the substrate.
  • suitable organic coatings subsequently applied they satisfy the requirements of the food packaging industry.
  • the following example relates to a no-rinse process with a conversion coating by treatment with a solution of silanes in ethanol.

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  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Cookers (AREA)

Abstract

L'invention porte sur un procédé de production d'une bande d'aluminium ou d'alliage d'aluminium dotée d'une laque de thermoscellage sur une première surface et d'une laque cuite au four à base d'époxyde sur la seconde surface, une couche de conversion exempte de chrome étant produite sur les première et seconde surfaces de la bande d'aluminium ou d'alliage d'aluminium dans une ligne de production en continu avant application de la laque de thermoscellage et de la laque cuite au four, la couche de conversion exempte de chrome étant produite par (A) un procédé sans rinçage par traitement avec une solution de silanes dans un solvant organique polaire ou un procédé sans rinçage par traitement avec une solution aqueuse de 5 à 10 % en poids d'acide hexafluorotitanique (H2TiF6) et de 2,5 à 5 % en poids d'acide hexafluorozirconique (H2ZrF6), ou (B) un procédé avec rinçage par traitement avec une solution aqueuse de < 1 % en poids de dimolybdate de diammonium ((NH4)2Mo2O7) et de 5 à 10 % en poids d'acide hexafluorozirconique (H2ZrF6).
PCT/EP2012/002324 2011-06-10 2012-06-01 Procédé de production d'une bande d'aluminium ou d'alliage d'aluminium dotée d'une laque de thermoscellage sur une première surface et d'une laque cuite au four à base d'époxyde sur la seconde surface préalablement revêtue d'une couche de conversion exempte de chrome WO2012167889A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP12725321.9A EP2718479B1 (fr) 2011-06-10 2012-06-01 Procédé de production d'une bande d'aluminium ou d'alliage d'aluminium dotée d'une laque de thermoscellage sur une première surface et d'une laque cuite au four à base d'époxyde sur la seconde surface préalablement revêtue d'une couche de conversion exempte de chrome
PL12725321T PL2718479T3 (pl) 2011-06-10 2012-06-01 Sposób wytwarzania pasków z aluminium lub stopów aluminium, z lakierem termoutwardzalnym na pierwszej powierzchni i lakierem piecowym na bazie epoksydowej na drugiej powierzchni, uprzednio pokrytymi bezchromową powłoką modyfikującą
ES12725321.9T ES2668270T3 (es) 2011-06-10 2012-06-01 Método para producir una tira de aluminio o aleación de aluminio con una laca de termosellado sobre una primera superficie y una laca al horno sobre la segunda superficie previamente revestida con un revestimiento de conversión libre de cromo
HRP20180845TT HRP20180845T1 (hr) 2011-06-10 2018-05-28 Postupak proizvodnje aluminijskih traka ili traka od aluminijskih legura s vruće lijepljenim lakom na prvoj površini te s paljenim lakom na bazi epoksida na drugoj površini, koje su prethodno obložene konverzijskim slojem bez kroma

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP11004742A EP2532769A1 (fr) 2011-06-10 2011-06-10 Procédé de production dune couche de conversion sur une surface dune bande d'aluminium ou d'alliage d'aluminium
EP11004742.0 2011-06-10

Publications (1)

Publication Number Publication Date
WO2012167889A1 true WO2012167889A1 (fr) 2012-12-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/002324 WO2012167889A1 (fr) 2011-06-10 2012-06-01 Procédé de production d'une bande d'aluminium ou d'alliage d'aluminium dotée d'une laque de thermoscellage sur une première surface et d'une laque cuite au four à base d'époxyde sur la seconde surface préalablement revêtue d'une couche de conversion exempte de chrome

Country Status (5)

Country Link
EP (2) EP2532769A1 (fr)
ES (1) ES2668270T3 (fr)
HR (1) HRP20180845T1 (fr)
PL (1) PL2718479T3 (fr)
WO (1) WO2012167889A1 (fr)

Cited By (6)

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EP2890830B1 (fr) * 2012-08-29 2018-06-27 PPG Industries Ohio, Inc. Compositions de prétraitement du zirconium qui contiennent du molybdène, procédés associés permettant de traiter des substrats métalliques et substrats métalliques recouverts associés
WO2019002249A1 (fr) 2017-06-26 2019-01-03 Actega Rhenania Gmbh Procédé d'application d'un revêtement multicolore sur une feuille en métal ou en alliage métallique
CN110373661A (zh) * 2019-07-31 2019-10-25 首钢京唐钢铁联合有限责任公司 一种镀锡板钝化液及钝化工艺
WO2020126802A1 (fr) 2018-12-21 2020-06-25 Actega Rhenania Gmbh Composition pour appliquer un revêtement multicouche sur un substrat
US11518960B2 (en) 2016-08-24 2022-12-06 Ppg Industries Ohio, Inc. Alkaline molybdenum cation and phosphonate-containing cleaning composition
US11945976B2 (en) 2014-05-27 2024-04-02 Amcor Flexibles Rorschach Ag Heat-sealable structure for aluminum disposable beverage-brewing containers

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103230347A (zh) * 2013-05-03 2013-08-07 杨松涛 多效免冲洗浴液及其制备方法
DE102013107506A1 (de) 2013-07-16 2015-01-22 Thyssenkrupp Rasselstein Gmbh Verfahren zur Passivierung von bandförmigem Schwarzblech
DE102015113878B4 (de) 2015-08-21 2023-03-16 Thyssenkrupp Ag Verfahren zur thermischen Behandlung eines mit einer Konversionsschicht beschichteten Schwarzblechs
RU2750923C1 (ru) * 2015-09-15 2021-07-06 Хеметалл Гмбх Предварительная обработка алюминиевых поверхностей составами, содержащими цирконий и молибден

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EP2532769A1 (fr) 2012-12-12
EP2718479B1 (fr) 2018-03-14
HRP20180845T1 (hr) 2018-09-07

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